Preventing Registration of a Terminal to Services in a Service Providing Network

1. A method of handling services in a service providing network, the service providing network comprising a serving network node connected to one or more application servers, the method comprising the steps of: a first terminal comprising one or more services sending a registration message to the serving network node associated with the first terminal; providing the serving network node, in response to the registration message, with service routing information associated with the first terminal, the service routing information arranged to prevent registration of the first terminal to services residing on the application servers and corresponding with one or more services in the first terminal.

2. The method according to claim 1 wherein the registration message comprises service availability information of the first terminal, and wherein the step of providing service routing information comprises a step of modifying service routing information based on said service availability information.

3. The method according to claim 1 wherein the step of providing service routing information comprises a step of the serving network node retrieving preconfigured service routing information from a database, the preconfiguring of the service routing information being performed in the network during a provisioning process and based on service availability information of the first terminal.

4. The method according to claim 3 , wherein the service routing information comprises a user service profile and one or more initial Filter Criteria (iFC), the user service profile being associated with the one or more iFC.

5. The method according to claim 4 , wherein the iFC comprises service trigger point information, wherein the service trigger point information of an iFC associated with a service corresponding to one of the services in the first user terminal is set to FALSE.

6. The method according to claim 5 , the method further comprising the steps of: executing at the first terminal an originating call service; sending, in response to the execution of the service, a service message to the serving network node; and the serving network node directly routing the service message to a second terminal.

7. The method according to claim 6 , wherein the service message is a SIP INVITE message for inviting the second terminal to a call session.

8. The method according to claim 7 , wherein the execution of the originating service is triggered by a request comprising an URI of the second terminal.

9. The method according to claim 8 , wherein the service generates, on the basis of the URI provided by the request, an R-URI identifying the second terminal.

10. The method of claim 9 , wherein the R-URI is inserted in a header of the SIP INVITE message.

11. The method according to claim 1 , the method further comprising the steps of: receiving at the serving network node of the first terminal a service message; the serving network node directly routing the service message to the first terminal; and the service message triggering the execution of a call service in the first terminal.

12. The method according to claim 11 , wherein the call service executed in the first terminal is a terminating call service.

13. A serving network node in a service providing network, the serving network node being associated with a terminal, the terminal comprising one or more services, the serving network node comprising: a first software code for receiving a service message comprising service availability information from the terminal; a second software code for, in response to the receipt of the service availability information, providing service routing information arranged to prevent registration of the first terminal to services residing on one or more application servers, wherein the services correspond with one or more services in the first terminal; and a third software code for executing the service routing information in response to the receipt of the service message.

14. The serving network node according to claim 13 , further arranged to provide said service routing information to a database in the service providing network.

15. The serving network node of claim 13 , wherein the serving network node is part of a system for handling services in the service providing network, and wherein the serving network node is communicatively coupled to (i) the one or more application servers, and (ii) the terminal.